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Gas chromatography/electron impact mass spectrometry applied to the differentiation of the positional isomers of long‐chain n ‐alkylcyclohexanones
Author(s) -
Rontani J.F.,
Giusti G.
Publication year - 1989
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210240910
Subject(s) - fragmentation (computing) , chemistry , alkyl , structural isomer , deuterium , mass spectrometry , electron ionization , labelling , gas chromatography , side chain , stereochemistry , medicinal chemistry , chromatography , analytical chemistry (journal) , computational chemistry , organic chemistry , ion , ionization , nuclear physics , physics , biochemistry , polymer , computer science , operating system
The influence of n ‐butyl group position upon the fragmentation behavior of the three isomeric n ‐butylcyclohexanones was studied. The different fragmentation processes are described and have been applied to the differentiation of the positional isomers of long‐chain n ‐alkylcyclohexanones. In the case of the 4‐ n ‐alkyl isomers, an interesting mechanism involving a recyclization is proposed and substantiated by deuterium labelling.